From mboxrd@z Thu Jan 1 00:00:00 1970 From: Al Viro Subject: Re: [BUG 2.6.17-git] kmem_cache_create: duplicate cache scsi_cmd_cache Date: Fri, 12 May 2006 22:58:00 +0100 Message-ID: <20060512215800.GQ27946@ftp.linux.org.uk> References: <20060511151456.GD3755@harddisk-recovery.com> <15ddcffd0605112153q57f139a1k7068e204a3eeaf1f@mail.gmail.com> <20060512171632.GA29077@harddisk-recovery.com> <20060512203416.GA17120@flint.arm.linux.org.uk> <20060512214354.GP27946@ftp.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from zeniv.linux.org.uk ([195.92.253.2]:13954 "EHLO ZenIV.linux.org.uk") by vger.kernel.org with ESMTP id S932259AbWELV6E (ORCPT ); Fri, 12 May 2006 17:58:04 -0400 Content-Disposition: inline In-Reply-To: <20060512214354.GP27946@ftp.linux.org.uk> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Linus Torvalds , Erik Mouw , Or Gerlitz , linux-scsi@vger.kernel.org, axboe@suse.de, Linux Kernel Mailing List On Fri, May 12, 2006 at 10:43:54PM +0100, Al Viro wrote: > On Fri, May 12, 2006 at 09:34:16PM +0100, Russell King wrote: > > On Fri, May 12, 2006 at 10:36:57AM -0700, Linus Torvalds wrote: > > > Yes. We could just revert that commit, but it seems correct, and I'd > > > really like for somebody to understand _why_ that commit matters at all. I > > > certainly don't see the overlap here.. > > > > Reverting the commit breaks MMC/SD in a very real way, and the fix > > is plainly correct and is actually the only possible fix that can be > > applied. > > Bullshit. Could you explain what generic code dereferences ->driverfs_dev > after del_gendisk()? If you see such beast, please tell; _that_ is the > real bug. Aha... So block_uevent() appears to be badly broken. Lovely... OK, could somebody explain WTF is userland supposed to do with event refering to device that had been gone for a long time?